tumnigИзвестия высших учебных заведений. Нефть и газOil and Gas Studies0445-01083033-8174Industrial University of Tyumen10.31660/0445-0108-2016-2-84-86tumnig-71Research ArticleБУРЕНИЕ СКВАЖИН И РАЗРАБОТКА МЕСТОРОЖДЕНИЙDRILLING OF WELLS AND FIELDS DEVELOPMENTОБОСНОВАНИЕ ПРИМЕНЕНИЯ ЭКРАННОЙ МОДЕЛИ ДЛЯ ПРОГНОЗИРОВАНИЯ ЭФФЕКТИВНОЙ ВЯЗКОСТИ PPG В ОТКРЫТЫХ ТРЕЩИНАХJUSTIFICATION OF USING A SCREEN MODEL TO PREDICT THE EFFECTIVE VISCOSITY OF PPG IN OPEN FRACTURESСохошкоС. К.SokhoshkoS. K.noemail@neicon.ruАлиГ. Х.AliG. H.mehemet80@yahoo.comТюменский государственный нефтегазовый университетРоссияTyumen state oil and gas UniversityRussian Federation201630042016028486Copyright © Сохошко С.К., Али Г.Х., 20162016Сохошко С.К., Али Г.Х.Sokhoshko S.K., Ali G.H.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://tumnig.tyuiu.ru/jour/article/view/71

Целью работы является разработка метода для определения эффективной вязкости гранулированного геля PPG для блокирования техногенных трещин (трещин авто-ГРП), который используется на поздних стадиях разработки нефтяных месторождений. На лабораторной модели трещины были получены значения констант (кажущейся постоянной консистенции и кажущегося показателя псевдопластичности) для уравнения вязкопластичной жидкости. Эти же константы использованы в полученном уравнении для градиента давления вдоль техногенной трещины. Вязкость геля рассчитывалась из уравнения движения геля вдоль трещины. Данное уравнение позволяет рассчитывать вязкость геля для каждого размера фракций гранулированного геля в зависимости от ширины трещины и скорости закачки геля.

This work purpose was to develop a method for determination of the effective viscosity of the granulated gel PPG for blocking anthropogenic fractures (auto-FHF fractures) which is applied at later stages of oil fields development. Using the laboratory fracture model the values of constants (apparent constant consistency and the apparent index of pseudoplasticity) for the equation of viscoelastic liquid were obtained. The same constants were used to derive the equation for pressure gradient along the anthropogenic fracture. The gel viscosity is calculated by the equation of gel movement along the fracture. This equation enables to predict the gel viscosity for each size of granulated gel fractions depending on the fracture width and the gel injection velocity.

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The authors declare that there are no conflicts of interest present.